mirror of
https://github.com/snltty/linker.git
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63 lines
2.7 KiB
C#
63 lines
2.7 KiB
C#
using System.Runtime.InteropServices;
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using System.Text;
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namespace linker.tun
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{
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internal static class LinuxAPI
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{
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internal const int O_ACCMODE = 0x00000003;
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internal const int O_RDONLY = 0x00000000;
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internal const int O_WRONLY = 0x00000001;
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internal const int O_RDWR = 0x00000002;
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internal const int O_CREAT = 0x00000040;
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internal const int O_EXCL = 0x00000080;
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internal const int O_NOCTTY = 0x00000100;
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internal const int O_TRUNC = 0x00000200;
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internal const int O_APPEND = 0x00000400;
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internal const int O_NONBLOCK = 0x00000800;
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internal const int O_NDELAY = 0x00000800;
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internal const int O_SYNC = 0x00101000;
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internal const int O_ASYNC = 0x00002000;
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[DllImport("libc.so.6", EntryPoint = "open", SetLastError = true)]
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internal static extern int Open(string fileName, int mode);
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[DllImport("libc.so.6", EntryPoint = "close", SetLastError = true)]
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internal static extern int Close(int fd);
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[DllImport("libc.so.6", EntryPoint = "ioctl", SetLastError = true)]
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internal static extern int Ioctl(int fd, uint request, byte[] dat);
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[DllImport("libc.so.6", EntryPoint = "ioctl", SetLastError = true)]
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internal static extern int Ioctl(SafeHandle device, uint request, byte[] dat);
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[DllImport("libc.so.6", EntryPoint = "read", SetLastError = true)]
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internal static extern int Read(int handle, byte[] data, int length);
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[DllImport("libc.so.6", EntryPoint = "read", SetLastError = true)]
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internal static extern int Read(int handle, IntPtr data, int length);
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[DllImport("libc.so.6", EntryPoint = "write", SetLastError = true)]
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internal static extern int Write(int handle, byte[] data, int length);
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internal static int Ioctl(string name, SafeHandle device, uint request)
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{
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byte[] ifreqFREG0 = Encoding.ASCII.GetBytes(name);
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Array.Resize(ref ifreqFREG0, 16);
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byte[] ifreqFREG1 = { 0x01, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
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byte[] ifreq = BytesPlusBytes(ifreqFREG0, ifreqFREG1);
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return LinuxAPI.Ioctl(device, request, ifreq);
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}
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internal static byte[] BytesPlusBytes(byte[] A, byte[] B)
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{
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byte[] ret = new byte[A.Length + B.Length - 1 + 1];
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int k = 0;
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for (var i = 0; i <= A.Length - 1; i++)
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ret[i] = A[i];
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k = A.Length;
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for (var i = k; i <= ret.Length - 1; i++)
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ret[i] = B[i - k];
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return ret;
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}
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}
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}
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